:root {
  color-scheme: light;
  --paper: #efe9dd;
  --panel: #f6f2e9;
  --fill: #fffcf5;
  --ink: #191512;
  --ink-soft: #3b342c;
  --ink-mute: #5e574c;
  --label: #6b6153;
  --rule: #d5cbb8;
  --field-border: #958a78;
  --chip-border: #948b79;
  --accent: #8a3b12;
  --accent-hover: #5c2409;
  --ink-solid: #2a231c;
  --on-solid: #fdfbf6;
  --font-body: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --font-label: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink-soft);
  background: var(--paper);
}

main {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 24px 64px;
}

main.card {
  max-width: 760px;
  margin: 4rem auto;
  padding: 32px 24px;
  background: var(--panel);
  text-align: center;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
}
.skip:focus {
  left: 0.5rem;
  top: 0.5rem;
  z-index: 10;
  background: var(--fill);
  color: var(--ink);
  padding: 0.5rem 0.75rem;
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

header,
footer {
  max-width: 860px;
  margin: 0 auto;
  padding: 24px;
}

.wordmark {
  margin: 0;
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--ink);
}

h1 {
  color: var(--ink);
  font-size: clamp(1.75rem, 1.4rem + 1.6vw, 2.5rem);
  line-height: 1.2;
  margin: 0 0 16px;
}

h2 {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--label);
  margin: 0 0 16px;
  padding-top: 32px;
  border-top: 1px solid var(--rule);
}

section.hero {
  padding-top: 0;
}

section:not(.hero) {
  margin-top: 40px;
}

.subhead {
  color: var(--ink-soft);
  font-size: 1.1em;
}

.buildif {
  border-left: 2px solid var(--accent);
  padding: 2px 0 2px 18px;
  margin: 24px 0;
  color: var(--ink);
}

ol,
ul {
  padding-left: 1.25em;
}
li {
  margin-bottom: 0.6em;
}
li ul {
  margin-top: 0.4em;
}

.promise {
  color: var(--ink-mute);
}

form {
  display: grid;
  gap: 12px;
  margin: 24px 0;
  padding: 24px;
  background: var(--panel);
  border: 1px solid var(--rule);
}

label {
  font-weight: 600;
  color: var(--ink);
}

.optional {
  font-weight: 400;
  color: var(--ink-mute);
}

.hint {
  margin: 0;
  font-size: 0.9em;
  color: var(--ink-mute);
}

input,
button {
  font: inherit;
}

input[type="email"] {
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--field-border);
  background: var(--fill);
  color: var(--ink);
  border-radius: 0;
  width: 100%;
  max-width: 24rem;
}

fieldset {
  border: 1px solid var(--rule);
  padding: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

legend {
  padding: 0 6px;
  font-weight: 600;
  color: var(--ink);
}

fieldset label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  min-height: 40px;
  font-weight: 400;
  background: var(--fill);
  border: 1px solid var(--chip-border);
  cursor: pointer;
}
fieldset label:has(input:checked) {
  background: var(--ink-solid);
  border-color: var(--ink-solid);
  color: var(--on-solid);
}
fieldset input[type="checkbox"] {
  outline-offset: 2px;
}
fieldset input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--accent);
}

button {
  padding: 0.75rem 1.4rem;
  background: var(--ink-solid);
  color: var(--on-solid);
  border: 0;
  border-radius: 0;
  cursor: pointer;
  justify-self: start;
}
button:hover {
  background: var(--accent-hover);
}

a {
  color: var(--accent);
}
a:hover {
  color: var(--accent-hover);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
/* The skip link moves focus to <main> (tabindex="-1"); a ring around the
   whole page would only be noise. */
main:focus-visible {
  outline: none;
}

details {
  border-bottom: 1px solid var(--rule);
  padding: 12px 0;
}
details summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 600;
}
details summary::-webkit-details-marker {
  display: none;
}
details summary [data-plus] {
  color: var(--accent);
  font-weight: 400;
  transition: transform 0.15s ease;
  flex-shrink: 0;
}
details[open] summary [data-plus] {
  transform: rotate(45deg);
}
details p {
  margin: 12px 0 0;
  color: var(--ink-soft);
}

footer p {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

@media (max-width: 400px) {
  main {
    padding: 0 16px 48px;
  }
  header,
  footer {
    padding: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}

/* Post pages (public/posts/): a reading column. Everything below is scoped to
   the post markup, except .wordmark a, which matches nothing on / (its
   wordmark has no link), so / renders exactly as before. The column stays
   left-aligned so it lines up with the wordmark and the footer. */
.wordmark a {
  color: inherit;
  text-decoration: none;
}

article.post {
  max-width: 700px;
}
article.post h2 {
  font-family: var(--font-body);
  font-size: 1.35rem;
  letter-spacing: normal;
  text-transform: none;
  line-height: 1.3;
  color: var(--ink);
  margin: 40px 0 12px;
  padding-top: 0;
  border-top: 0;
}
article.post code {
  font-family: var(--font-label);
  font-size: 0.88em;
  overflow-wrap: anywhere;
}
article.post pre {
  overflow-x: auto;
  padding: 12px 14px;
  background: var(--panel);
  border: 1px solid var(--rule);
  line-height: 1.45;
}
article.post pre code {
  overflow-wrap: normal;
}
article.post table {
  display: block;
  overflow-x: auto;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 15px;
}
article.post th,
article.post td {
  border: 1px solid var(--rule);
  padding: 6px 10px;
  text-align: left;
  vertical-align: top;
}
article.post th {
  color: var(--ink);
  background: var(--panel);
}